I do suspect that poker can't be as inherently fun as most other card and board games of chance and skill, because if it was it shouldn't need high stakes to be exciting. But that's just a suspicion.
I have a philosophy of life, that I'd like to explain. Picture there's an immigrant. He comes from some far-off country with a very different culture. He didn't move by choice, he doesn't much like the culture of the county he came to. He'd like to protect his culture and raise his kids in it. He doesn't let them mingle, or get too involved in the culture around them. Naturally, he fails. Looking back on it as an old man, he realises that his kids have adopted not only the worst attributes of the surrounding culture, but they have kept the least sympathetic sides of the old culture, his culture too. And they're repeating his mistakes. "I should have let go", he laments. "I should have picked the things that actually matter, and asked them to hold on to just those, rather than trying to keep everything the way I was used to."
I've told it as a story about immigration, because then it's quite easy to believe, right? But truth is, even if we never move to another country, we move to the future. Culture changes. We are that immigrant dad. We too, if we just try to hold on to what we're familiar with, will lose. We need to make conscious choices about what really matters, what's worth holding onto, and what we can let go. If we just coast along without thinking, we'll keep bad traditions and make new bad traditions too.
Gambling culture is one of those things I want to let go. Become a thing of the past. Recycled into something better. I do love modern board and card games, which manage to be fun without high stakes, smoky rooms and martinis. It's not that I don't understand the glamourous appeal of of all that, I am your "countryman" in that regard. It's just not what I want to save.
Obviously your viewpoint is perfectly valid - there are plenty of people who have been irreparably harmed by gambling culture and the way that poker is marketed largely does itself no favors in that regard. My point is that degenerate culture and poker can be separated and there are absolutely healthy ways to enjoy a hobby which, yes, has a luck element to it, but also requires precise study and meticulous decision making to excel at.
From what I've read I think you are conflating the predatory nature of casinos with the game of poker. Those two things are certainly linked, but I would argue that it would be a mistake to write off a game like No Limit Texas Hold'em as irredeemably harmful due to the association.
Obviously not everyone plays poker in a smoky room with gangsters, or even with real money, but I think maybe that cultural context is part of the explanation. You absolutely can divorce it from that cultural context, if you like poker but hate gambling - but is that worth holding onto, when there are so many options to get similar intellectual and social pleasures?
Grant me the serenity to accept the things I cannot change, the courage to change the things I can, and the wisdom to know the difference.
Put it on my tombstone: “he got it in good”.